A flag with a green hill, a crown, a clover, and a Viking ship.

CA $991 Cheap Flights from Ontario Intl. Airport (ONT) to Dublin (DUB)

View CA $991 flight on Fri, Nov 6, 2026Opens in a new window

Popular airlines from Ontario Intl. Airport (ONT) to Dublin Airport (DUB)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from Ontario Intl. Airport (ONT) to Dublin (DUB)

Prices were available within the past 7 days and start at CA $991 for one-way flights and CA $1,236 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, Nov 6 - Fri, Nov 13
ONT
Ontario
DUB
Dublin
CA $1,236 Roundtrip, found 23 hours ago
CA $1,236
Roundtrip
found 23 hours ago
Select Delta flight, departing Fri, Nov 6 from Ontario to Dublin, returning Fri, Nov 13, priced at CA $1,236 found 23 hours ago
Delta
Fri, Nov 6 - Fri, Nov 13
ONT
Ontario
DUB
Dublin
CA $1,276 Roundtrip, found 23 hours ago
CA $1,276
Roundtrip
found 23 hours ago
Select Delta flight, departing Fri, Nov 6 from Ontario to Dublin, returning Fri, Nov 13, priced at CA $1,276 found 23 hours ago
Delta
Fri, Nov 6 - Fri, Nov 13
ONT
Ontario
DUB
Dublin
CA $1,548 Roundtrip, found 23 hours ago
CA $1,548
Roundtrip
found 23 hours ago
Select Delta flight, departing Fri, Nov 6 from Ontario to Dublin, returning Fri, Nov 13, priced at CA $1,548 found 23 hours ago

Frequently asked questions

How much is a flight from Ontario Airport to DUB?
The lowest price advertised for a round-trip flight between ONT and Dublin Airport is CA $1,236. But you better act fast. This figure is taken from fares listed within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from ONT to DUB?
Most flights can be cancelled online, but whether you are charged a fee all comes down to your airline. If you do have to cancel your break, follow the instructions in the Customer Service Portal.
How do I find cheap flights from ONT to Dublin Airport that have flexible change policies?
Many airlines will allow you to reschedule your flight without a change fee. All you pay is the difference in the ticket price. When looking for Ontario Airport to DUB flights, you'll see a "No change fees" filter for you to select.
How far is the flight from Los Angeles - Ontario Intl. Airport (ONT) to DUB?
With a flight distance of 8,300 kilometres from Ontario Airport (ONT) to Dublin Airport (DUB) (DUB), this is a long journey. Ensure that you keep well hydrated and get up to stretch your legs every so often.
Which airlines fly direct from Los Angeles - Ontario Intl. Airport (ONT) to Dublin Airport?
Unfortunately, there are no airlines that directly fly between ONT and Dublin Airport (DUB). You'll need to book a flight with one or more stops.
Are Los Angeles - Ontario Intl. Airport (ONT) to DUB flight tickets cheaper when they're purchased at the last minute?
Flight prices from Los Angeles - Ontario Intl. Airport (ONT) to Dublin Airport are available up to a year before departure on Expedia. And although you may occasionally nab great last-minute deal, it's never a sure thing. Also, booking your flights in advance means you'll have more choices — and you can avoid being wedged in the dreaded middle seat! We're constantly updating our fares to bring you the best bargains, so check back often for all the latest specials.

Travel information

Origin airport
Ontario Intl. Airport
Destination airport
Dublin
Airlines serving
Delta
Roundtrip price
CA $1,236
Distance
8216 km

Book with confidence

Los Angeles to Dublin Flights

The easy way to book your flights from Ontario Intl. Airport to Dublin 

With Expedia, it’s simple to find and book flights to Dublin from Ontario Intl. Airport whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 4 airlines that cover this route. There are nonstop flights to Dublin, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Ontario Intl. Airport to Dublin today, tomorrow, or this week.  

 

Save dollars with cheap flights from Ontario Intl. Airport, ONT to Dublin, DUB 

Sort your search results by price to find great deals on your flight from Ontario Intl. Airport to Dublin—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Dublin from Ontario Intl. Airport currently is just CA $1,236 rising to CA $1,548.  

Here are more money-saving tips: 

  • Fly in November when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Dublin  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Dublin from Ontario Intl. Airport 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Dublin with Expedia today.

Los Angeles to Dublin Flights

Explore a world of travel with Expedia

*Available to Expedia members.